vdr-plugin-softhdcuvid/common.h

/*
 * This file is part of mpv.
 *
 * mpv is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * mpv is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MPLAYER_GL_COMMON_H
#define MPLAYER_GL_COMMON_H

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#if 0
#include "common/msg.h"
#include "config.h"
#include "misc/bstr.h"

#include "video/csputils.h"
#include "video/mp_image.h"
#include "video/out/vo.h"
#endif

#if HAVE_GL_COCOA
#define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED 1
#include <OpenGL/gl.h>
#include <OpenGL/gl3.h>
#include <OpenGL/glext.h>
#elif HAVE_IOS_GL
#include <OpenGLES/ES2/glext.h>
#include <OpenGLES/ES3/glext.h>
#elif HAVE_ANDROID_GL
#include <GLES3/gl3.h>
#else
#include <GL/gl.h>
#include <GL/glext.h>
#endif

#define MP_GET_GL_WORKAROUNDS
#include "header_fixes.h"

struct GL;
typedef struct GL GL;

enum {
    MPGL_CAP_ROW_LENGTH = (1 << 4), // GL_[UN]PACK_ROW_LENGTH
    MPGL_CAP_FB = (1 << 5),
    MPGL_CAP_VAO = (1 << 6),
    MPGL_CAP_TEX_RG = (1 << 10),        // GL_ARB_texture_rg / GL 3.x
    MPGL_CAP_VDPAU = (1 << 11),         // GL_NV_vdpau_interop
    MPGL_CAP_APPLE_RGB_422 = (1 << 12), // GL_APPLE_rgb_422
    MPGL_CAP_1D_TEX = (1 << 14),
    MPGL_CAP_3D_TEX = (1 << 15),
    MPGL_CAP_DEBUG = (1 << 16),
    MPGL_CAP_DXINTEROP = (1 << 17),     // WGL_NV_DX_interop
    MPGL_CAP_EXT16 = (1 << 18),         // GL_EXT_texture_norm16
    MPGL_CAP_ARB_FLOAT = (1 << 19),     // GL_ARB_texture_float
    MPGL_CAP_EXT_CR_HFLOAT = (1 << 20), // GL_EXT_color_buffer_half_float

    MPGL_CAP_SW = (1 << 30), // indirect or sw renderer
};

// E.g. 310 means 3.1
// Code doesn't have to use the macros; they are for convenience only.
#define MPGL_VER(major, minor) (((major)*100) + (minor)*10)
#define MPGL_VER_GET_MAJOR(ver) ((unsigned)(ver) / 100)
#define MPGL_VER_GET_MINOR(ver) ((unsigned)(ver) % 100 / 10)

#define MPGL_VER_P(ver) MPGL_VER_GET_MAJOR(ver), MPGL_VER_GET_MINOR(ver)

void mpgl_load_functions(GL *gl, void *(*getProcAddress)(const GLubyte *), const char *ext2, struct mp_log *log);
void mpgl_load_functions2(GL *gl, void *(*get_fn)(void *ctx, const char *n), void *fn_ctx, const char *ext2,
                          struct mp_log *log);

typedef void(GLAPIENTRY *MP_GLDEBUGPROC)(GLenum, GLenum, GLuint, GLenum, GLsizei, const GLchar *, const void *);

// function pointers loaded from the OpenGL library
struct GL {
    int version;        // MPGL_VER() mangled (e.g. 210 for 2.1)
    int es;             // es version (e.g. 300), 0 for desktop GL
    int glsl_version;   // e.g. 130 for GLSL 1.30
    char *extensions;   // Equivalent to GL_EXTENSIONS
    int mpgl_caps;      // Bitfield of MPGL_CAP_* constants
    bool debug_context; // use of e.g. GLX_CONTEXT_DEBUG_BIT_ARB
    GLuint main_fb;     // framebuffer to render to (normally 0)

    void(GLAPIENTRY *Viewport)(GLint, GLint, GLsizei, GLsizei);
    void(GLAPIENTRY *Clear)(GLbitfield);
    void(GLAPIENTRY *GenTextures)(GLsizei, GLuint *);
    void(GLAPIENTRY *DeleteTextures)(GLsizei, const GLuint *);
    void(GLAPIENTRY *ClearColor)(GLclampf, GLclampf, GLclampf, GLclampf);
    void(GLAPIENTRY *Enable)(GLenum);
    void(GLAPIENTRY *Disable)(GLenum);
    const GLubyte *(GLAPIENTRY *GetString)(GLenum);
    void(GLAPIENTRY *BlendFuncSeparate)(GLenum, GLenum, GLenum, GLenum);
    void(GLAPIENTRY *Flush)(void);
    void(GLAPIENTRY *Finish)(void);
    void(GLAPIENTRY *PixelStorei)(GLenum, GLint);
    void(GLAPIENTRY *TexImage1D)(GLenum, GLint, GLint, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
    void(GLAPIENTRY *TexImage2D)(GLenum, GLint, GLint, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
    void(GLAPIENTRY *TexSubImage2D)(GLenum, GLint, GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, const GLvoid *);
    void(GLAPIENTRY *TexParameteri)(GLenum, GLenum, GLint);
    void(GLAPIENTRY *GetIntegerv)(GLenum, GLint *);
    void(GLAPIENTRY *ReadPixels)(GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, GLvoid *);
    void(GLAPIENTRY *ReadBuffer)(GLenum);
    void(GLAPIENTRY *DrawArrays)(GLenum, GLint, GLsizei);
    GLenum(GLAPIENTRY *GetError)(void);
    void(GLAPIENTRY *GetTexLevelParameteriv)(GLenum, GLint, GLenum, GLint *);
    void(GLAPIENTRY *Scissor)(GLint, GLint, GLsizei, GLsizei);

    void(GLAPIENTRY *GenBuffers)(GLsizei, GLuint *);
    void(GLAPIENTRY *DeleteBuffers)(GLsizei, const GLuint *);
    void(GLAPIENTRY *BindBuffer)(GLenum, GLuint);
    void(GLAPIENTRY *BindBufferBase)(GLenum, GLuint, GLuint);
    GLvoid *(GLAPIENTRY *MapBufferRange)(GLenum, GLintptr, GLsizeiptr, GLbitfield);
    GLboolean(GLAPIENTRY *UnmapBuffer)(GLenum);
    void(GLAPIENTRY *BufferData)(GLenum, intptr_t, const GLvoid *, GLenum);
    void(GLAPIENTRY *ActiveTexture)(GLenum);
    void(GLAPIENTRY *BindTexture)(GLenum, GLuint);
    int(GLAPIENTRY *SwapInterval)(int);
    void(GLAPIENTRY *TexImage3D)(GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum,
                                 const GLvoid *);

    void(GLAPIENTRY *GenVertexArrays)(GLsizei, GLuint *);
    void(GLAPIENTRY *BindVertexArray)(GLuint);
    GLint(GLAPIENTRY *GetAttribLocation)(GLuint, const GLchar *);
    void(GLAPIENTRY *EnableVertexAttribArray)(GLuint);
    void(GLAPIENTRY *DisableVertexAttribArray)(GLuint);
    void(GLAPIENTRY *VertexAttribPointer)(GLuint, GLint, GLenum, GLboolean, GLsizei, const GLvoid *);
    void(GLAPIENTRY *DeleteVertexArrays)(GLsizei, const GLuint *);
    void(GLAPIENTRY *UseProgram)(GLuint);
    GLint(GLAPIENTRY *GetUniformLocation)(GLuint, const GLchar *);
    void(GLAPIENTRY *CompileShader)(GLuint);
    GLuint(GLAPIENTRY *CreateProgram)(void);
    GLuint(GLAPIENTRY *CreateShader)(GLenum);
    void(GLAPIENTRY *ShaderSource)(GLuint, GLsizei, const GLchar **, const GLint *);
    void(GLAPIENTRY *LinkProgram)(GLuint);
    void(GLAPIENTRY *AttachShader)(GLuint, GLuint);
    void(GLAPIENTRY *DeleteShader)(GLuint);
    void(GLAPIENTRY *DeleteProgram)(GLuint);
    void(GLAPIENTRY *GetShaderInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
    void(GLAPIENTRY *GetShaderiv)(GLuint, GLenum, GLint *);
    void(GLAPIENTRY *GetProgramInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
    void(GLAPIENTRY *GetProgramiv)(GLenum, GLenum, GLint *);
    const GLubyte *(GLAPIENTRY *GetStringi)(GLenum, GLuint);
    void(GLAPIENTRY *BindAttribLocation)(GLuint, GLuint, const GLchar *);
    void(GLAPIENTRY *BindFramebuffer)(GLenum, GLuint);
    void(GLAPIENTRY *GenFramebuffers)(GLsizei, GLuint *);
    void(GLAPIENTRY *DeleteFramebuffers)(GLsizei, const GLuint *);
    GLenum(GLAPIENTRY *CheckFramebufferStatus)(GLenum);
    void(GLAPIENTRY *FramebufferTexture2D)(GLenum, GLenum, GLenum, GLuint, GLint);
    void(GLAPIENTRY *BlitFramebuffer)(GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum);
    void(GLAPIENTRY *GetFramebufferAttachmentParameteriv)(GLenum, GLenum, GLenum, GLint *);

    void(GLAPIENTRY *Uniform1f)(GLint, GLfloat);
    void(GLAPIENTRY *Uniform2f)(GLint, GLfloat, GLfloat);
    void(GLAPIENTRY *Uniform3f)(GLint, GLfloat, GLfloat, GLfloat);
    void(GLAPIENTRY *Uniform4f)(GLint, GLfloat, GLfloat, GLfloat, GLfloat);
    void(GLAPIENTRY *Uniform1i)(GLint, GLint);
    void(GLAPIENTRY *UniformMatrix2fv)(GLint, GLsizei, GLboolean, const GLfloat *);
    void(GLAPIENTRY *UniformMatrix3fv)(GLint, GLsizei, GLboolean, const GLfloat *);

    void(GLAPIENTRY *InvalidateFramebuffer)(GLenum, GLsizei, const GLenum *);

    GLsync(GLAPIENTRY *FenceSync)(GLenum, GLbitfield);
    GLenum(GLAPIENTRY *ClientWaitSync)(GLsync, GLbitfield, GLuint64);
    void(GLAPIENTRY *DeleteSync)(GLsync sync);

    void(GLAPIENTRY *GenQueries)(GLsizei, GLuint *);
    void(GLAPIENTRY *DeleteQueries)(GLsizei, const GLuint *);
    void(GLAPIENTRY *BeginQuery)(GLenum, GLuint);
    void(GLAPIENTRY *EndQuery)(GLenum);
    void(GLAPIENTRY *QueryCounter)(GLuint, GLenum);
    GLboolean(GLAPIENTRY *IsQuery)(GLuint);
    void(GLAPIENTRY *GetQueryObjectiv)(GLuint, GLenum, GLint *);
    void(GLAPIENTRY *GetQueryObjecti64v)(GLuint, GLenum, GLint64 *);
    void(GLAPIENTRY *GetQueryObjectuiv)(GLuint, GLenum, GLuint *);
    void(GLAPIENTRY *GetQueryObjectui64v)(GLuint, GLenum, GLuint64 *);

    void(GLAPIENTRY *VDPAUInitNV)(const GLvoid *, const GLvoid *);
    void(GLAPIENTRY *VDPAUFiniNV)(void);
    GLvdpauSurfaceNV(GLAPIENTRY *VDPAURegisterOutputSurfaceNV)(GLvoid *, GLenum, GLsizei, const GLuint *);
    GLvdpauSurfaceNV(GLAPIENTRY *VDPAURegisterVideoSurfaceNV)(GLvoid *, GLenum, GLsizei, const GLuint *);
    void(GLAPIENTRY *VDPAUUnregisterSurfaceNV)(GLvdpauSurfaceNV);
    void(GLAPIENTRY *VDPAUSurfaceAccessNV)(GLvdpauSurfaceNV, GLenum);
    void(GLAPIENTRY *VDPAUMapSurfacesNV)(GLsizei, const GLvdpauSurfaceNV *);
    void(GLAPIENTRY *VDPAUUnmapSurfacesNV)(GLsizei, const GLvdpauSurfaceNV *);

#if HAVE_GL_WIN32
    // The HANDLE type might not be present on non-Win32
    BOOL(GLAPIENTRY *DXSetResourceShareHandleNV)
    (void *dxObject, HANDLE shareHandle);
    HANDLE(GLAPIENTRY *DXOpenDeviceNV)(void *dxDevice);
    BOOL(GLAPIENTRY *DXCloseDeviceNV)(HANDLE hDevice);
    HANDLE(GLAPIENTRY *DXRegisterObjectNV)
    (HANDLE hDevice, void *dxObject, GLuint name, GLenum type, GLenum access);
    BOOL(GLAPIENTRY *DXUnregisterObjectNV)(HANDLE hDevice, HANDLE hObject);
    BOOL(GLAPIENTRY *DXLockObjectsNV)
    (HANDLE hDevice, GLint count, HANDLE *hObjects);
    BOOL(GLAPIENTRY *DXUnlockObjectsNV)
    (HANDLE hDevice, GLint count, HANDLE *hObjects);
#endif

    GLint(GLAPIENTRY *GetVideoSync)(GLuint *);
    GLint(GLAPIENTRY *WaitVideoSync)(GLint, GLint, unsigned int *);

    void(GLAPIENTRY *GetTranslatedShaderSourceANGLE)(GLuint, GLsizei, GLsizei *, GLchar *source);

    void(GLAPIENTRY *DebugMessageCallback)(MP_GLDEBUGPROC callback, const void *userParam);

    void *(GLAPIENTRY *MPGetNativeDisplay)(const char *name);
};

#endif /* MPLAYER_GL_COMMON_H */